src/motif/window.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        windows.cpp
   3 // Purpose:     wxWindow
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "window.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __VMS
  28 #define XtDisplay XTDISPLAY
  29 #define XtWindow XTWINDOW
  30 #define XtScreen XTSCREEN
  31 #endif
  32
  33 #include "wx/setup.h"
  34 #include "wx/menu.h"
  35 #include "wx/dc.h"
  36 #include "wx/dcclient.h"
  37 #include "wx/utils.h"
  38 #include "wx/app.h"
  39 #include "wx/layout.h"
  40 #include "wx/button.h"
  41 #include "wx/settings.h"
  42 #include "wx/frame.h"
  43 #include "wx/scrolwin.h"
  44 #include "wx/module.h"
  45 #include "wx/menuitem.h"
  46 #include "wx/log.h"
  47 #include "wx/evtloop.h"
  48 #include "wx/hash.h"
  49
  50 #if  wxUSE_DRAG_AND_DROP
  51     #include "wx/dnd.h"
  52 #endif
  53
  54 // DoSetSizeIntr and DoMoveWindowIntr
  55 // PROBLEM:
  56 // under Motif composite controls (such as wxCalendarCtrl or generic wxSpinCtrl
  57 // did nott work and/or segfaulted because
  58 // 1) wxWindow::Create calls SetSize,
  59 //    which results in a call to DoSetSize much earlier than in the other ports
  60 // 2) if wxWindow::Create is called (wxControl::Create calls it)
  61 //    then DoSetSize is never called, causing layout problems in composite
  62 //    controls
  63 //
  64 // SOLUTION:
  65 // 1) don't call SetSize, DoSetSize, DoMoveWindow, DoGetPosition,
  66 //    DoSetPosition directly or indirectly from wxWindow::Create
  67 // 2) call DoMoveWindow from DoSetSize, allowing controls to override it
  68
  69 #ifdef __VMS__
  70 #pragma message disable nosimpint
  71 #endif
  72 #include <Xm/Xm.h>
  73
  74 #include <Xm/DrawingA.h>
  75 #include <Xm/ScrolledW.h>
  76 #include <Xm/ScrollBar.h>
  77 #include <Xm/Frame.h>
  78 #include <Xm/Label.h>
  79 #include <Xm/RowColumn.h>           // for XmMenuPosition
  80 #ifdef __VMS__
  81 #pragma message enable nosimpint
  82 #endif
  83
  84 #include "wx/motif/private.h"
  85
  86 #include <string.h>
  87
  88 // ----------------------------------------------------------------------------
  89 // constants
  90 // ----------------------------------------------------------------------------
  91
  92 static const int SCROLL_MARGIN = 4;
  93
  94 // ----------------------------------------------------------------------------
  95 // global variables for this module
  96 // ----------------------------------------------------------------------------
  97
  98 extern wxHashTable *wxWidgetHashTable;
  99 static wxWindow* g_captureWindow = NULL;
 100
 101
 102 // ----------------------------------------------------------------------------
 103 // private functions
 104 // ----------------------------------------------------------------------------
 105
 106 static void wxCanvasRepaintProc(Widget, XtPointer, XmDrawingAreaCallbackStruct * cbs);
 107 static void wxCanvasInputEvent(Widget drawingArea, XtPointer data, XmDrawingAreaCallbackStruct * cbs);
 108 static void wxCanvasMotionEvent(Widget, XButtonEvent * event);
 109 static void wxCanvasEnterLeave(Widget drawingArea, XtPointer clientData, XCrossingEvent * event);
 110 static void wxScrollBarCallback(Widget widget, XtPointer clientData,
 111                                 XmScrollBarCallbackStruct *cbs);
 112 static void wxPanelItemEventHandler(Widget    wid,
 113                                     XtPointer client_data,
 114                                     XEvent*   event,
 115                                     Boolean  *continueToDispatch);
 116
 117 // unused for now
 118 #if 0
 119
 120 // Helper function for 16-bit fonts
 121 static int str16len(const char *s)
 122 {
 123     int count = 0;
 124
 125     while (s[0] && s[1]) {
 126         count++;
 127         s += 2;
 128     }
 129
 130     return count;
 131 }
 132
 133 #endif // 0
 134
 135 // ----------------------------------------------------------------------------
 136 // macros
 137 // ----------------------------------------------------------------------------
 138
 139 #define event_left_is_down(x) ((x)->xbutton.state & Button1Mask)
 140 #define event_middle_is_down(x) ((x)->xbutton.state & Button2Mask)
 141 #define event_right_is_down(x) ((x)->xbutton.state & Button3Mask)
 142
 143 // ----------------------------------------------------------------------------
 144 // event tables
 145 // ----------------------------------------------------------------------------
 146
 147     IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
 148
 149     BEGIN_EVENT_TABLE(wxWindow, wxWindowBase)
 150         EVT_SYS_COLOUR_CHANGED(wxWindow::OnSysColourChanged)
 151     END_EVENT_TABLE()
 152
 153 // ============================================================================
 154 // implementation
 155 // ============================================================================
 156
 157 // ----------------------------------------------------------------------------
 158 // helper functions
 159 // ----------------------------------------------------------------------------
 160
 161 void wxWindow::UnmanageAndDestroy(WXWidget widget)
 162 {
 163     Widget w = (Widget)widget;
 164     if ( w )
 165     {
 166         XtUnmanageChild(w);
 167         XtDestroyWidget(w);
 168     }
 169 }
 170
 171 bool wxWindow::MapOrUnmap(WXWidget widget, bool domap)
 172 {
 173     Widget w = (Widget)widget;
 174     if ( !w )
 175         return FALSE;
 176
 177     //   Rationale: a lot of common operations (including but not
 178     // limited to moving, resizing and appending items to a listbox)
 179     // unmamange the widget, do their work, then manage it again.
 180     // This means that, for example adding an item to a listbox will show it,
 181     // or that most controls are shown every time they are moved or resized!
 182     XtSetMappedWhenManaged( w, domap );
 183
 184     // if the widget is not unmanaged, it still intercepts
 185     // mouse events, even if it is not mapped (and hence invisible)
 186     if ( domap )
 187     {
 188         XtManageChild(w);
 189         // XtMapWidget(w);
 190     }
 191     else
 192     {
 193         XtUnmanageChild(w);
 194         // XtUnmapWidget(w);
 195     }
 196
 197     return TRUE;
 198 }
 199
 200 // ----------------------------------------------------------------------------
 201 // constructors
 202 // ----------------------------------------------------------------------------
 203
 204 void wxWindow::Init()
 205 {
 206     // Motif-specific
 207     m_needsRefresh = TRUE;
 208     m_mainWidget = (WXWidget) 0;
 209
 210     m_winCaptured = FALSE;
 211
 212     m_isShown = TRUE;
 213
 214     m_hScrollBar =
 215     m_vScrollBar =
 216     m_borderWidget =
 217     m_scrolledWindow =
 218     m_drawingArea = (WXWidget) 0;
 219
 220     m_scrollPosX =
 221     m_scrollPosY = 0;
 222
 223     m_backingPixmap = (WXPixmap) 0;
 224     m_pixmapWidth =
 225     m_pixmapHeight = 0;
 226
 227     m_pixmapOffsetX =
 228     m_pixmapOffsetY = 0;
 229
 230     m_lastTS = 0;
 231     m_lastButton = 0;
 232 }
 233
 234 // real construction (Init() must have been called before!)
 235 bool wxWindow::Create(wxWindow *parent, wxWindowID id,
 236                       const wxPoint& pos,
 237                       const wxSize& size,
 238                       long style,
 239                       const wxString& name)
 240 {
 241     wxCHECK_MSG( parent, FALSE, "can't create wxWindow without parent" );
 242
 243     CreateBase(parent, id, pos, size, style, wxDefaultValidator, name);
 244
 245     parent->AddChild(this);
 246
 247     m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 248     m_foregroundColour = *wxBLACK;
 249
 250     //// TODO: we should probably optimize by only creating a
 251     //// a drawing area if we have one or more scrollbars (wxVSCROLL/wxHSCROLL).
 252     //// But for now, let's simplify things by always creating the
 253     //// drawing area, since otherwise the translations are different.
 254
 255     // New translations for getting mouse motion feedback
 256     static const String translations =
 257 "<Btn1Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 258 <Btn2Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 259 <Btn3Motion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 260 <BtnMotion>: wxCanvasMotionEvent() DrawingAreaInput() ManagerGadgetButtonMotion()\n\
 261 <Btn1Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 262 <Btn2Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 263 <Btn3Down>: DrawingAreaInput() ManagerGadgetArm()\n\
 264 <Btn1Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 265 <Btn2Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 266 <Btn3Up>: DrawingAreaInput() ManagerGadgetActivate()\n\
 267 <Motion>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 268 <EnterWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 269 <LeaveWindow>: wxCanvasMotionEvent() DrawingAreaInput()\n\
 270 <Key>: DrawingAreaInput()";
 271
 272     XtActionsRec actions[1];
 273     actions[0].string = "wxCanvasMotionEvent";
 274     actions[0].proc = (XtActionProc) wxCanvasMotionEvent;
 275     XtAppAddActions ((XtAppContext) wxTheApp->GetAppContext(), actions, 1);
 276
 277     Widget parentWidget = (Widget) parent->GetClientWidget();
 278     m_borderWidget = wxCreateBorderWidget( (WXWidget)parentWidget, style );
 279
 280     m_scrolledWindow = (WXWidget)XtVaCreateManagedWidget
 281                                  (
 282                                   "scrolledWindow",
 283                                   xmScrolledWindowWidgetClass,
 284                                   m_borderWidget ? (Widget) m_borderWidget
 285                                                  : parentWidget,
 286                                   XmNresizePolicy, XmRESIZE_NONE,
 287                                   XmNspacing, 0,
 288                                   XmNscrollingPolicy, XmAPPLICATION_DEFINED,
 289                                   //XmNscrollBarDisplayPolicy, XmAS_NEEDED,
 290                                   NULL
 291                                  );
 292
 293     XtTranslations ptr = XtParseTranslationTable(translations);
 294     m_drawingArea = (WXWidget)XtVaCreateWidget
 295                               (
 296                                name,
 297                                xmDrawingAreaWidgetClass, (Widget) m_scrolledWindow,
 298                                XmNunitType, XmPIXELS,
 299                                // XmNresizePolicy, XmRESIZE_ANY,
 300                                XmNresizePolicy, XmRESIZE_NONE,
 301                                XmNmarginHeight, 0,
 302                                XmNmarginWidth, 0,
 303                                XmNtranslations, ptr,
 304                                NULL
 305                               );
 306     XtFree((char *) ptr);
 307
 308 #if 0
 309     if (GetWindowStyleFlag() & wxOVERRIDE_KEY_TRANSLATIONS)
 310     {
 311         ptr = XtParseTranslationTable ("<Key>: DrawingAreaInput()");
 312         XtOverrideTranslations ((Widget) m_drawingArea, ptr);
 313         XtFree ((char *) ptr);
 314     }
 315 #endif // 0
 316
 317     wxAddWindowToTable((Widget) m_drawingArea, this);
 318     wxAddWindowToTable((Widget) m_scrolledWindow, this);
 319
 320     // This order is very important in Motif 1.2.1
 321     XtRealizeWidget ((Widget) m_scrolledWindow);
 322     XtRealizeWidget ((Widget) m_drawingArea);
 323     XtManageChild ((Widget) m_drawingArea);
 324
 325     ptr = XtParseTranslationTable("<Configure>: resize()");
 326     XtOverrideTranslations((Widget) m_drawingArea, ptr);
 327     XtFree ((char *) ptr);
 328
 329     XtAddCallback ((Widget) m_drawingArea, XmNexposeCallback, (XtCallbackProc) wxCanvasRepaintProc, (XtPointer) this);
 330     XtAddCallback ((Widget) m_drawingArea, XmNinputCallback, (XtCallbackProc) wxCanvasInputEvent, (XtPointer) this);
 331
 332     XtAddEventHandler(
 333                       (Widget)m_drawingArea,
 334                        PointerMotionHintMask | EnterWindowMask |
 335                        LeaveWindowMask | FocusChangeMask,
 336                        False,
 337                        (XtEventHandler) wxCanvasEnterLeave,
 338                        (XtPointer) this
 339                      );
 340
 341     // Scrolled widget needs to have its colour changed or we get a little blue
 342     // square where the scrollbars abutt
 343     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 344     wxDoChangeBackgroundColour(m_scrolledWindow, backgroundColour, TRUE);
 345     wxDoChangeBackgroundColour(m_drawingArea, backgroundColour, TRUE);
 346
 347     XmScrolledWindowSetAreas(
 348                              (Widget)m_scrolledWindow,
 349                              (Widget) 0, (Widget) 0,
 350                              (Widget) m_drawingArea);
 351
 352     // Without this, the cursor may not be restored properly (e.g. in splitter
 353     // sample).
 354     SetCursor(*wxSTANDARD_CURSOR);
 355     SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
 356     DoSetSizeIntr(pos.x, pos.y, size.x,size.y, wxSIZE_AUTO, TRUE);
 357     return TRUE;
 358 }
 359
 360 // Destructor
 361 wxWindow::~wxWindow()
 362 {
 363     if (g_captureWindow == this)
 364         g_captureWindow = NULL;
 365
 366     m_isBeingDeleted = TRUE;
 367
 368     // Motif-specific actions first
 369     WXWidget wMain = GetMainWidget();
 370     if ( wMain )
 371     {
 372         // Removes event handlers
 373         DetachWidget(wMain);
 374     }
 375
 376     // If m_drawingArea, we're a fully-fledged window with drawing area,
 377     // scrollbars etc. (what wxCanvas used to be)
 378     if ( m_drawingArea )
 379     {
 380         // Destroy children before destroying self
 381         DestroyChildren();
 382
 383         if (m_backingPixmap)
 384             XFreePixmap (XtDisplay ((Widget) GetMainWidget()), (Pixmap) m_backingPixmap);
 385
 386         Widget w = (Widget) m_drawingArea;
 387         wxDeleteWindowFromTable(w);
 388
 389         if (w)
 390         {
 391             XtDestroyWidget(w);
 392             m_drawingArea = (WXWidget) 0;
 393         }
 394
 395         // Only if we're _really_ a canvas (not a dialog box/panel)
 396         if (m_scrolledWindow)
 397         {
 398             wxDeleteWindowFromTable((Widget) m_scrolledWindow);
 399         }
 400
 401         if (m_hScrollBar)
 402         {
 403             wxDeleteWindowFromTable((Widget) m_hScrollBar);
 404             XtUnmanageChild((Widget) m_hScrollBar);
 405         }
 406         if (m_vScrollBar)
 407         {
 408             wxDeleteWindowFromTable((Widget) m_vScrollBar);
 409             XtUnmanageChild((Widget) m_vScrollBar);
 410         }
 411
 412         if (m_hScrollBar)
 413             XtDestroyWidget((Widget) m_hScrollBar);
 414         if (m_vScrollBar)
 415             XtDestroyWidget((Widget) m_vScrollBar);
 416
 417         UnmanageAndDestroy(m_scrolledWindow);
 418
 419         if (m_borderWidget)
 420         {
 421             XtDestroyWidget ((Widget) m_borderWidget);
 422             m_borderWidget = (WXWidget) 0;
 423         }
 424     }
 425     else // Why wasn't this here before? JACS 8/3/2000
 426         DestroyChildren();
 427
 428
 429     // Destroy the window
 430     if (GetMainWidget())
 431     {
 432         // If this line (XtDestroyWidget) causes a crash, you may comment it out.
 433         // Child widgets will get destroyed automatically when a frame
 434         // or dialog is destroyed, but before that you may get some memory
 435         // leaks and potential layout problems if you delete and then add
 436         // child windows.
 437
 438         // GRG, Feb/2000: commented this out when adding support for
 439         //   wxSCROLL[WIN]_THUMBRELEASE events. Also it was reported
 440         //   that this call crashed wxMotif under OS/2, so it seems
 441         //   that leaving it out is the right thing to do.
 442         // SN, Feb/2000: newgrid/griddemo shows why it is needed :-(
 443         XtDestroyWidget((Widget) GetMainWidget());
 444         SetMainWidget((WXWidget) NULL);
 445     }
 446 }
 447
 448 // ----------------------------------------------------------------------------
 449 // scrollbar management
 450 // ----------------------------------------------------------------------------
 451
 452 WXWidget wxWindow::DoCreateScrollBar(WXWidget parent,
 453                                      wxOrientation orientation,
 454                                      void (*callback)())
 455 {
 456     int orient = ( orientation & wxHORIZONTAL ) ? XmHORIZONTAL : XmVERTICAL;
 457     Widget sb =
 458         XtVaCreateManagedWidget( "scrollBarWidget",
 459                                  xmScrollBarWidgetClass, (Widget)parent,
 460                                  XmNorientation, orient,
 461                                  XmNincrement, 1,
 462                                  XmNvalue, 0,
 463                                  NULL );
 464
 465     XtPointer o = (XtPointer)orientation;
 466     XtCallbackProc cb = (XtCallbackProc)callback;
 467
 468     XtAddCallback( sb, XmNvalueChangedCallback, cb, o );
 469     XtAddCallback( sb, XmNdragCallback, cb, o );
 470     XtAddCallback( sb, XmNincrementCallback, cb, o );
 471     XtAddCallback( sb, XmNdecrementCallback, cb, o );
 472     XtAddCallback( sb, XmNpageIncrementCallback, cb, o );
 473     XtAddCallback( sb, XmNpageDecrementCallback, cb, o );
 474     XtAddCallback( sb, XmNtoTopCallback, cb, o );
 475     XtAddCallback( sb, XmNtoBottomCallback, cb, o );
 476
 477     return (WXWidget)sb;
 478 }
 479
 480 // Helper function
 481 void wxWindow::CreateScrollbar(wxOrientation orientation)
 482 {
 483     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 484
 485     XtVaSetValues( (Widget) m_scrolledWindow,
 486                    XmNresizePolicy, XmRESIZE_NONE,
 487                    NULL );
 488
 489     wxColour backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 490     // Add scrollbars if required
 491     if (orientation == wxHORIZONTAL)
 492     {
 493         m_hScrollBar = DoCreateScrollBar( m_scrolledWindow, wxHORIZONTAL,
 494                                           (void (*)())wxScrollBarCallback );
 495
 496         wxDoChangeBackgroundColour(m_hScrollBar, backgroundColour, TRUE);
 497
 498         XtRealizeWidget( (Widget)m_hScrollBar );
 499
 500         XtVaSetValues((Widget) m_scrolledWindow,
 501             XmNhorizontalScrollBar, (Widget) m_hScrollBar,
 502             NULL);
 503
 504         wxAddWindowToTable( (Widget)m_hScrollBar, this );
 505     }
 506     else if (orientation == wxVERTICAL)
 507     {
 508         m_vScrollBar = DoCreateScrollBar( m_scrolledWindow, wxVERTICAL,
 509                                           (void (*)())wxScrollBarCallback );
 510
 511         wxDoChangeBackgroundColour(m_vScrollBar, backgroundColour, TRUE);
 512
 513         XtRealizeWidget((Widget)m_vScrollBar);
 514
 515         XtVaSetValues((Widget) m_scrolledWindow,
 516             XmNverticalScrollBar, (Widget) m_vScrollBar,
 517             NULL);
 518
 519         wxAddWindowToTable( (Widget)m_vScrollBar, this );
 520     }
 521
 522     XtVaSetValues( (Widget) m_scrolledWindow,
 523                    XmNresizePolicy, XmRESIZE_ANY,
 524                    NULL );
 525 }
 526
 527 void wxWindow::DestroyScrollbar(wxOrientation orientation)
 528 {
 529     wxCHECK_RET( m_drawingArea, "this window can't have scrollbars" );
 530
 531     XtVaSetValues((Widget) m_scrolledWindow,
 532                   XmNresizePolicy, XmRESIZE_NONE,
 533                   NULL);
 534     String stringSB = orientation == wxHORIZONTAL ?
 535         XmNhorizontalScrollBar : XmNverticalScrollBar;
 536     WXWidget* widgetSB = orientation == wxHORIZONTAL ?
 537         &m_hScrollBar : &m_vScrollBar;
 538
 539     if( *widgetSB )
 540     {
 541         wxDeleteWindowFromTable( (Widget)*widgetSB );
 542         XtDestroyWidget( (Widget)*widgetSB );
 543         *widgetSB = (WXWidget)NULL;
 544     }
 545
 546     XtVaSetValues( (Widget)m_scrolledWindow,
 547                    stringSB, (Widget) 0,
 548                    NULL );
 549
 550     XtVaSetValues((Widget) m_scrolledWindow,
 551                   XmNresizePolicy, XmRESIZE_ANY,
 552                   NULL);
 553 }
 554
 555 // ---------------------------------------------------------------------------
 556 // basic operations
 557 // ---------------------------------------------------------------------------
 558
 559 void wxWindow::SetFocus()
 560 {
 561     Widget wMain = (Widget) GetMainWidget();
 562     XmProcessTraversal(wMain, XmTRAVERSE_CURRENT);
 563     XmProcessTraversal((Widget) GetMainWidget(), XmTRAVERSE_CURRENT);
 564 }
 565
 566 // Get the window with the focus
 567 wxWindow *wxWindowBase::FindFocus()
 568 {
 569     // TODO Problems:
 570     // (1) Can there be multiple focussed widgets in an application?
 571     // In which case we need to find the top-level window that's
 572     // currently active.
 573     // (2) The widget with the focus may not be in the widget table
 574     // depending on which widgets I put in the table
 575     wxWindow *winFocus = (wxWindow *)NULL;
 576     for ( wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst();
 577           node;
 578           node = node->GetNext() )
 579     {
 580         wxWindow *win = node->GetData();
 581
 582         Widget w = XmGetFocusWidget ((Widget) win->GetTopWidget());
 583
 584         if (w != (Widget) NULL)
 585         {
 586             winFocus = wxGetWindowFromTable(w);
 587             if ( winFocus )
 588                 break;
 589         }
 590     }
 591
 592     return winFocus;
 593 }
 594
 595 bool wxWindow::Enable(bool enable)
 596 {
 597     if ( !wxWindowBase::Enable(enable) )
 598         return FALSE;
 599
 600     Widget wMain = (Widget)GetMainWidget();
 601     if ( wMain )
 602     {
 603         XtSetSensitive(wMain, enable);
 604         XmUpdateDisplay(wMain);
 605     }
 606
 607     return TRUE;
 608 }
 609
 610 bool wxWindow::Show(bool show)
 611 {
 612     if ( !wxWindowBase::Show(show) )
 613         return FALSE;
 614
 615     if (m_borderWidget || m_scrolledWindow)
 616     {
 617         MapOrUnmap(m_borderWidget ? m_borderWidget : m_scrolledWindow, show);
 618         // MapOrUnmap(m_drawingArea, show);
 619     }
 620     else
 621     {
 622         if ( !MapOrUnmap(GetTopWidget(), show) )
 623             MapOrUnmap(GetMainWidget(), show);
 624     }
 625
 626     return TRUE;
 627 }
 628
 629 // Raise the window to the top of the Z order
 630 void wxWindow::Raise()
 631 {
 632     Widget wTop = (Widget) GetTopWidget();
 633     Window window = XtWindow(wTop);
 634     XRaiseWindow(XtDisplay(wTop), window);
 635 }
 636
 637 // Lower the window to the bottom of the Z order
 638 void wxWindow::Lower()
 639 {
 640     Widget wTop = (Widget) GetTopWidget();
 641     Window window = XtWindow(wTop);
 642     XLowerWindow(XtDisplay(wTop), window);
 643 }
 644
 645 void wxWindow::SetTitle(const wxString& title)
 646 {
 647     XtVaSetValues((Widget)GetMainWidget(), XmNtitle, title.c_str(), NULL);
 648 }
 649
 650 wxString wxWindow::GetTitle() const
 651 {
 652     char *title;
 653     XtVaGetValues((Widget)GetMainWidget(), XmNtitle, &title, NULL);
 654
 655     return wxString(title);
 656 }
 657
 658 void wxWindow::DoCaptureMouse()
 659 {
 660     g_captureWindow = this;
 661     if ( m_winCaptured )
 662         return;
 663
 664     Widget wMain = (Widget)GetMainWidget();
 665     if ( wMain )
 666         XtAddGrab(wMain, TRUE, FALSE);
 667
 668     m_winCaptured = TRUE;
 669 }
 670
 671 void wxWindow::DoReleaseMouse()
 672 {
 673     g_captureWindow = NULL;
 674     if ( !m_winCaptured )
 675         return;
 676
 677     Widget wMain = (Widget)GetMainWidget();
 678     if ( wMain )
 679         XtRemoveGrab(wMain);
 680
 681     m_winCaptured = FALSE;
 682 }
 683
 684 bool wxWindow::SetFont(const wxFont& font)
 685 {
 686     if ( !wxWindowBase::SetFont(font) )
 687     {
 688         // nothing to do
 689         return FALSE;
 690     }
 691
 692     ChangeFont();
 693
 694     return TRUE;
 695 }
 696
 697 bool wxWindow::SetCursor(const wxCursor& cursor)
 698 {
 699     if ( !wxWindowBase::SetCursor(cursor) )
 700     {
 701         // no change
 702         return FALSE;
 703     }
 704
 705     //    wxASSERT_MSG( m_cursor.Ok(),
 706     //                  wxT("cursor must be valid after call to the base version"));
 707     wxCursor* cursor2 = NULL;
 708     if (m_cursor.Ok())
 709         cursor2 = & m_cursor;
 710     else
 711         cursor2 = wxSTANDARD_CURSOR;
 712
 713     WXDisplay *dpy = GetXDisplay();
 714     WXCursor x_cursor = cursor2->GetXCursor(dpy);
 715
 716     Widget w = (Widget) GetMainWidget();
 717     Window win = XtWindow(w);
 718     XDefineCursor((Display*) dpy, win, (Cursor) x_cursor);
 719
 720     return TRUE;
 721 }
 722
 723 // Coordinates relative to the window
 724 void wxWindow::WarpPointer (int x, int y)
 725 {
 726     Widget wClient = (Widget)GetClientWidget();
 727
 728     XWarpPointer(XtDisplay(wClient), None, XtWindow(wClient), 0, 0, 0, 0, x, y);
 729 }
 730
 731 // ---------------------------------------------------------------------------
 732 // scrolling stuff
 733 // ---------------------------------------------------------------------------
 734
 735 int wxWindow::GetScrollPos(int orient) const
 736 {
 737     if (orient == wxHORIZONTAL)
 738         return m_scrollPosX;
 739     else
 740         return m_scrollPosY;
 741
 742 #if 0
 743     Widget scrollBar = (Widget) ((orient == wxHORIZONTAL) ? m_hScrollBar : m_vScrollBar);
 744     if (scrollBar)
 745     {
 746         int pos;
 747         XtVaGetValues(scrollBar, XmNvalue, &pos, NULL);
 748         return pos;
 749     }
 750     else
 751         return 0;
 752 #endif // 0
 753 }
 754
 755 // This now returns the whole range, not just the number of positions that we
 756 // can scroll.
 757 int wxWindow::GetScrollRange(int orient) const
 758 {
 759     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 760     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 761
 762     int range = 0;
 763     if (scrollBar)
 764         XtVaGetValues(scrollBar, XmNmaximum, &range, NULL);
 765     return range;
 766 }
 767
 768 int wxWindow::GetScrollThumb(int orient) const
 769 {
 770     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 771     wxCHECK_MSG( scrollBar, 0, "no such scrollbar" );
 772
 773     int thumb;
 774     XtVaGetValues(scrollBar, XmNsliderSize, &thumb, NULL);
 775     return thumb;
 776 }
 777
 778 void wxWindow::SetScrollPos(int orient, int pos, bool WXUNUSED(refresh))
 779 {
 780     Widget scrollBar = (Widget)GetScrollbar((wxOrientation)orient);
 781
 782     if ( scrollBar )
 783     {
 784         XtVaSetValues (scrollBar, XmNvalue, pos, NULL);
 785     }
 786
 787     SetInternalScrollPos((wxOrientation)orient, pos);
 788 }
 789
 790 // New function that will replace some of the above.
 791 void wxWindow::SetScrollbar(int orient, int pos, int thumbVisible,
 792                             int range, bool WXUNUSED(refresh))
 793 {
 794     int oldW, oldH;
 795     GetSize(& oldW, & oldH);
 796
 797     if (range == 0)
 798         range = 1;
 799     if (thumbVisible == 0)
 800         thumbVisible = 1;
 801
 802     if (thumbVisible > range)
 803         thumbVisible = range;
 804
 805     // Save the old state to see if it changed
 806     WXWidget oldScrollBar = GetScrollbar((wxOrientation)orient);
 807
 808     if (orient == wxHORIZONTAL)
 809     {
 810         if (thumbVisible == range)
 811         {
 812             if (m_hScrollBar)
 813                 DestroyScrollbar(wxHORIZONTAL);
 814         }
 815         else
 816         {
 817             if (!m_hScrollBar)
 818                 CreateScrollbar(wxHORIZONTAL);
 819         }
 820     }
 821     if (orient == wxVERTICAL)
 822     {
 823         if (thumbVisible == range)
 824         {
 825             if (m_vScrollBar)
 826                 DestroyScrollbar(wxVERTICAL);
 827         }
 828         else
 829         {
 830             if (!m_vScrollBar)
 831                 CreateScrollbar(wxVERTICAL);
 832         }
 833     }
 834     WXWidget newScrollBar =  GetScrollbar((wxOrientation)orient);
 835
 836     if (oldScrollBar != newScrollBar)
 837     {
 838         // This is important! Without it, scrollbars misbehave badly.
 839         XtUnrealizeWidget((Widget) m_scrolledWindow);
 840         XmScrolledWindowSetAreas ((Widget) m_scrolledWindow, (Widget) m_hScrollBar, (Widget) m_vScrollBar, (Widget) m_drawingArea);
 841         XtRealizeWidget((Widget) m_scrolledWindow);
 842         XtManageChild((Widget) m_scrolledWindow);
 843     }
 844
 845     if (newScrollBar)
 846     {
 847         XtVaSetValues((Widget) newScrollBar,
 848         XmNvalue, pos,
 849         XmNminimum, 0,
 850         XmNmaximum, range,
 851         XmNsliderSize, thumbVisible,
 852         NULL);
 853     }
 854
 855     SetInternalScrollPos((wxOrientation)orient, pos);
 856
 857     int newW, newH;
 858     GetSize(& newW, & newH);
 859
 860     // Adjusting scrollbars can resize the canvas accidentally
 861     if (newW != oldW || newH != oldH)
 862         SetSize(-1, -1, oldW, oldH);
 863 }
 864
 865 // Does a physical scroll
 866 void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect)
 867 {
 868     int x, y, w, h;
 869     if (rect)
 870     {
 871         // Use specified rectangle
 872         x = rect->x; y = rect->y; w = rect->width; h = rect->height;
 873     }
 874     else
 875     {
 876         // Use whole client area
 877         x = 0; y = 0;
 878         GetClientSize(& w, & h);
 879     }
 880
 881     int x1 = (dx >= 0) ? x : x - dx;
 882     int y1 = (dy >= 0) ? y : y - dy;
 883     int w1 = w - abs(dx);
 884     int h1 = h - abs(dy);
 885     int x2 = (dx >= 0) ? x + dx : x;
 886     int y2 = (dy >= 0) ? y + dy : y;
 887
 888     wxClientDC dc(this);
 889
 890     dc.SetLogicalFunction (wxCOPY);
 891
 892     Widget widget = (Widget) GetMainWidget();
 893     Window window = XtWindow(widget);
 894     Display* display = XtDisplay(widget);
 895
 896     XCopyArea(display, window, window, (GC) dc.GetGC(),
 897               x1, y1, w1, h1, x2, y2);
 898
 899     dc.SetAutoSetting(TRUE);
 900     wxBrush brush(GetBackgroundColour(), wxSOLID);
 901     dc.SetBrush(brush); // FIXME: needed?
 902
 903     wxWindowList::compatibility_iterator cnode = m_children.GetFirst();
 904     while (cnode)
 905     {
 906         wxWindow *child = cnode->GetData();
 907         int sx = 0;
 908         int sy = 0;
 909         child->GetSize( &sx, &sy );
 910         wxPoint pos( child->GetPosition() );
 911         child->SetSize( pos.x + dx, pos.y + dy, sx, sy, wxSIZE_ALLOW_MINUS_ONE );
 912         cnode = cnode->GetNext();
 913     }
 914
 915     // We'll add rectangles to the list of update rectangles according to which
 916     // bits we've exposed.
 917     wxList updateRects;
 918
 919     if (dx > 0)
 920     {
 921         wxRect *rect = new wxRect;
 922         rect->x = x;
 923         rect->y = y;
 924         rect->width = dx;
 925         rect->height = h;
 926
 927         XFillRectangle(display, window,
 928             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 929
 930         rect->x = rect->x;
 931         rect->y = rect->y;
 932         rect->width = rect->width;
 933         rect->height = rect->height;
 934
 935         updateRects.Append((wxObject*) rect);
 936     }
 937     else if (dx < 0)
 938     {
 939         wxRect *rect = new wxRect;
 940
 941         rect->x = x + w + dx;
 942         rect->y = y;
 943         rect->width = -dx;
 944         rect->height = h;
 945
 946         XFillRectangle(display, window,
 947             (GC) dc.GetGC(), rect->x, rect->y, rect->width,
 948             rect->height);
 949
 950         rect->x = rect->x;
 951         rect->y = rect->y;
 952         rect->width = rect->width;
 953         rect->height = rect->height;
 954
 955         updateRects.Append((wxObject*) rect);
 956     }
 957     if (dy > 0)
 958     {
 959         wxRect *rect = new wxRect;
 960
 961         rect->x = x;
 962         rect->y = y;
 963         rect->width = w;
 964         rect->height = dy;
 965
 966         XFillRectangle(display, window,
 967             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 968
 969         rect->x = rect->x;
 970         rect->y = rect->y;
 971         rect->width = rect->width;
 972         rect->height = rect->height;
 973
 974         updateRects.Append((wxObject*) rect);
 975     }
 976     else if (dy < 0)
 977     {
 978         wxRect *rect = new wxRect;
 979
 980         rect->x = x;
 981         rect->y = y + h + dy;
 982         rect->width = w;
 983         rect->height = -dy;
 984
 985         XFillRectangle(display, window,
 986             (GC) dc.GetGC(), rect->x, rect->y, rect->width, rect->height);
 987
 988         rect->x = rect->x;
 989         rect->y = rect->y;
 990         rect->width = rect->width;
 991         rect->height = rect->height;
 992
 993         updateRects.Append((wxObject*) rect);
 994     }
 995     dc.SetBrush(wxNullBrush);
 996
 997     // Now send expose events
 998
 999     wxList::compatibility_iterator  node = updateRects.GetFirst();
1000     while (node)
1001     {
1002         wxRect* rect = (wxRect*) node->GetData();
1003         XExposeEvent event;
1004
1005         event.type = Expose;
1006         event.display = display;
1007         event.send_event = True;
1008         event.window = window;
1009
1010         event.x = rect->x;
1011         event.y = rect->y;
1012         event.width = rect->width;
1013         event.height = rect->height;
1014
1015         event.count = 0;
1016
1017         XSendEvent(display, window, False, ExposureMask, (XEvent *)&event);
1018
1019         node = node->GetNext();
1020
1021     }
1022
1023     // Delete the update rects
1024     node = updateRects.GetFirst();
1025     while (node)
1026     {
1027         wxRect* rect = (wxRect*) node->GetData();
1028         delete rect;
1029         node = node->GetNext();
1030     }
1031
1032     XmUpdateDisplay((Widget) GetMainWidget());
1033 }
1034
1035 // ---------------------------------------------------------------------------
1036 // drag and drop
1037 // ---------------------------------------------------------------------------
1038
1039 #if wxUSE_DRAG_AND_DROP
1040
1041 void wxWindow::SetDropTarget(wxDropTarget * WXUNUSED(pDropTarget))
1042 {
1043     // TODO
1044 }
1045
1046 #endif
1047
1048 // Old style file-manager drag&drop
1049 void wxWindow::DragAcceptFiles(bool WXUNUSED(accept))
1050 {
1051     // TODO
1052 }
1053
1054 // ----------------------------------------------------------------------------
1055 // tooltips
1056 // ----------------------------------------------------------------------------
1057
1058 #if wxUSE_TOOLTIPS
1059
1060 void wxWindow::DoSetToolTip(wxToolTip * WXUNUSED(tooltip))
1061 {
1062     // TODO
1063 }
1064
1065 #endif // wxUSE_TOOLTIPS
1066
1067 // ----------------------------------------------------------------------------
1068 // popup menus
1069 // ----------------------------------------------------------------------------
1070
1071 #if wxUSE_MENUS
1072
1073 bool wxWindow::DoPopupMenu(wxMenu *menu, int x, int y)
1074 {
1075     Widget widget = (Widget) GetMainWidget();
1076
1077     /* The menuId field seems to be usused, so we'll use it to
1078     indicate whether a menu is popped up or not:
1079     0: Not currently created as a popup
1080     -1: Created as a popup, but not active
1081     1: Active popup.
1082     */
1083
1084     if (menu->GetParent() && (menu->GetId() != -1))
1085         return FALSE;
1086
1087     if (menu->GetMainWidget())
1088     {
1089         menu->DestroyMenu(TRUE);
1090     }
1091
1092     menu->SetId(1); /* Mark as popped-up */
1093     menu->CreateMenu(NULL, widget, menu);
1094     menu->SetInvokingWindow(this);
1095
1096     menu->UpdateUI();
1097
1098     //  menu->SetParent(parent);
1099     //  parent->children->Append(menu);  // Store menu for later deletion
1100
1101     Widget menuWidget = (Widget) menu->GetMainWidget();
1102
1103     int rootX = 0;
1104     int rootY = 0;
1105
1106     int deviceX = x;
1107     int deviceY = y;
1108     /*
1109     if (this->IsKindOf(CLASSINFO(wxCanvas)))
1110     {
1111     wxCanvas *canvas = (wxCanvas *) this;
1112     deviceX = canvas->GetDC ()->LogicalToDeviceX (x);
1113     deviceY = canvas->GetDC ()->LogicalToDeviceY (y);
1114     }
1115     */
1116
1117     Display *display = XtDisplay (widget);
1118     Window rootWindow = RootWindowOfScreen (XtScreen((Widget)widget));
1119     Window thisWindow = XtWindow (widget);
1120     Window childWindow;
1121     XTranslateCoordinates (display, thisWindow, rootWindow, (int) deviceX, (int) deviceY,
1122         &rootX, &rootY, &childWindow);
1123
1124     XButtonPressedEvent event;
1125     event.type = ButtonPress;
1126     event.button = 1;
1127
1128     event.x = deviceX;
1129     event.y = deviceY;
1130
1131     event.x_root = rootX;
1132     event.y_root = rootY;
1133
1134     XmMenuPosition (menuWidget, &event);
1135     XtManageChild (menuWidget);
1136
1137     // The ID of a pop-up menu is 1 when active, and is set to 0 by the
1138     // idle-time destroy routine.
1139     // Waiting until this ID changes causes this function to block until
1140     // the menu has been dismissed and the widgets cleaned up.
1141     // In other words, once this routine returns, it is safe to delete
1142     // the menu object.
1143     // Ian Brown <ian.brown@printsoft.de>
1144
1145     wxEventLoop evtLoop;
1146
1147     while (menu->GetId() == 1)
1148     {
1149         wxDoEventLoopIteration( evtLoop );
1150     }
1151
1152     return TRUE;
1153 }
1154
1155 #endif
1156
1157 // ---------------------------------------------------------------------------
1158 // moving and resizing
1159 // ---------------------------------------------------------------------------
1160
1161 bool wxWindow::PreResize()
1162 {
1163     return TRUE;
1164 }
1165
1166 // Get total size
1167 void wxWindow::DoGetSize(int *x, int *y) const
1168 {
1169     Widget widget = (Widget)( !m_drawingArea ? GetTopWidget() :
1170                               ( m_borderWidget ? m_borderWidget :
1171                                 m_scrolledWindow ? m_scrolledWindow :
1172                                 m_drawingArea ) );
1173     Dimension xx, yy;
1174
1175     XtVaGetValues( widget,
1176                    XmNwidth, &xx,
1177                    XmNheight, &yy,
1178                    NULL );
1179     if(x) *x = xx;
1180     if(y) *y = yy;
1181 }
1182
1183 void wxWindow::DoGetPosition(int *x, int *y) const
1184 {
1185     Widget widget = (Widget)
1186         ( m_drawingArea ?
1187           ( m_borderWidget ? m_borderWidget : m_scrolledWindow ) :
1188           GetTopWidget() );
1189
1190     Position xx, yy;
1191     XtVaGetValues(widget, XmNx, &xx, XmNy, &yy, NULL);
1192
1193     // We may be faking the client origin. So a window that's really at (0, 30)
1194     // may appear (to wxWin apps) to be at (0, 0).
1195     if (GetParent())
1196     {
1197         wxPoint pt(GetParent()->GetClientAreaOrigin());
1198         xx -= pt.x;
1199         yy -= pt.y;
1200     }
1201
1202     if(x) *x = xx;
1203     if(y) *y = yy;
1204 }
1205
1206 void wxWindow::DoScreenToClient(int *x, int *y) const
1207 {
1208     Widget widget = (Widget) GetClientWidget();
1209     Display *display = XtDisplay((Widget) GetMainWidget());
1210     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1211     Window thisWindow = XtWindow(widget);
1212
1213     Window childWindow;
1214     int xx = *x;
1215     int yy = *y;
1216     XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
1217 }
1218
1219 void wxWindow::DoClientToScreen(int *x, int *y) const
1220 {
1221     Widget widget = (Widget) GetClientWidget();
1222     Display *display = XtDisplay(widget);
1223     Window rootWindow = RootWindowOfScreen(XtScreen(widget));
1224     Window thisWindow = XtWindow(widget);
1225
1226     Window childWindow;
1227     int xx = *x;
1228     int yy = *y;
1229     XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
1230 }
1231
1232
1233 // Get size *available for subwindows* i.e. excluding menu bar etc.
1234 void wxWindow::DoGetClientSize(int *x, int *y) const
1235 {
1236     Widget widget = (Widget) GetClientWidget();
1237     Dimension xx, yy;
1238     XtVaGetValues(widget, XmNwidth, &xx, XmNheight, &yy, NULL);
1239     if(x) *x = xx; if(y) *y = yy;
1240 }
1241
1242 void wxWindow::DoSetSize(int x, int y, int width, int height, int sizeFlags)
1243 {
1244     DoSetSizeIntr(x, y, width, height, sizeFlags, FALSE);
1245 }
1246
1247 void wxWindow::DoSetSizeIntr(int x, int y, int width, int height,
1248                              int sizeFlags, bool fromCtor)
1249 {
1250     // A bit of optimization to help sort out the flickers.
1251     int oldX = -1, oldY = -1, oldW = -1, oldH = -1;
1252     if( !fromCtor )
1253     {
1254         GetSize(& oldW, & oldH);
1255         GetPosition(& oldX, & oldY);
1256     }
1257
1258     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1259     {
1260         if ( x == -1 )
1261             x = oldX;
1262         if ( y == -1 )
1263             y = oldY;
1264     }
1265
1266     wxSize size(-1, -1);
1267     if ( width <= 0 )
1268     {
1269         if ( ( sizeFlags & wxSIZE_AUTO_WIDTH ) && !fromCtor )
1270         {
1271             size = DoGetBestSize();
1272             width = size.x;
1273         }
1274         else
1275         {
1276             width = oldW;
1277         }
1278     }
1279
1280     if ( height == -1 )
1281     {
1282         if( ( sizeFlags & wxSIZE_AUTO_HEIGHT ) && !fromCtor )
1283         {
1284             if( size.x == -1 ) size = DoGetBestSize();
1285             height = size.y;
1286         }
1287         else
1288         {
1289             height = oldH;
1290         }
1291     }
1292
1293     if ( x != oldX || y != oldY || width != oldW || height != oldH
1294          || !wxNoOptimize::CanOptimize() )
1295     {
1296         if (m_drawingArea)
1297         {
1298             int flags = 0;
1299
1300             if (x > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1301                 flags |= wxMOVE_X;
1302
1303             if (y > -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
1304                 flags |= wxMOVE_Y;
1305
1306             if (width > 0)
1307                 flags |= wxMOVE_WIDTH;
1308
1309             if (height > 0)
1310                 flags |= wxMOVE_HEIGHT;
1311
1312             int xx = x; int yy = y;
1313             AdjustForParentClientOrigin(xx, yy, sizeFlags);
1314             if( !fromCtor )
1315                 DoMoveWindow( xx, yy, width, height );
1316             else
1317                 DoMoveWindowIntr( xx, yy, width, height, flags );
1318
1319             return;
1320         }
1321
1322         Widget widget = (Widget) GetTopWidget();
1323         if (!widget)
1324             return;
1325
1326         bool managed = XtIsManaged( widget );
1327         if (managed)
1328             XtUnmanageChild(widget);
1329
1330         int xx = x;
1331         int yy = y;
1332         AdjustForParentClientOrigin(xx, yy, sizeFlags);
1333
1334         DoMoveWindow(xx, yy, width, height);
1335
1336         if (managed)
1337             XtManageChild(widget);
1338     }
1339 }
1340
1341 void wxWindow::DoSetClientSize(int width, int height)
1342 {
1343     if (m_drawingArea)
1344     {
1345         Widget drawingArea = (Widget) m_drawingArea;
1346
1347         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1348
1349         if (width > -1)
1350             XtVaSetValues(drawingArea, XmNwidth, width, NULL);
1351         if (height > -1)
1352             XtVaSetValues(drawingArea, XmNheight, height, NULL);
1353
1354         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1355         return;
1356     }
1357
1358     Widget widget = (Widget) GetTopWidget();
1359
1360     if (width > -1)
1361         XtVaSetValues(widget, XmNwidth, width, NULL);
1362     if (height > -1)
1363         XtVaSetValues(widget, XmNheight, height, NULL);
1364 }
1365
1366 // For implementation purposes - sometimes decorations make the client area
1367 // smaller
1368 wxPoint wxWindow::GetClientAreaOrigin() const
1369 {
1370     return wxPoint(0, 0);
1371 }
1372
1373 void wxWindow::DoMoveWindowIntr(int xx, int yy, int w, int h,
1374                                 int flags)
1375 {
1376     if (m_drawingArea)
1377     {
1378         Widget drawingArea = (Widget) m_drawingArea;
1379         Widget borderOrScrolled = m_borderWidget ?
1380             (Widget) m_borderWidget :
1381             (Widget) m_scrolledWindow;
1382
1383         bool managed = XtIsManaged(borderOrScrolled);
1384         if (managed)
1385             XtUnmanageChild (borderOrScrolled);
1386         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_ANY, NULL);
1387
1388         if (flags & wxMOVE_X)
1389             XtVaSetValues (borderOrScrolled,
1390                            XmNx, xx,
1391                            NULL);
1392         if (flags & wxMOVE_Y)
1393             XtVaSetValues (borderOrScrolled,
1394                            XmNy, yy,
1395                            NULL);
1396
1397         if (flags & wxMOVE_WIDTH)
1398         {
1399             if (m_borderWidget)
1400             {
1401                 XtVaSetValues ((Widget) m_borderWidget, XmNwidth, w, NULL);
1402                 short thick, margin;
1403                 XtVaGetValues ((Widget) m_borderWidget,
1404                                XmNshadowThickness, &thick,
1405                                XmNmarginWidth, &margin,
1406                                NULL);
1407                 w -= 2 * (thick + margin);
1408             }
1409
1410             if( w < 1 ) w = 1;
1411             XtVaSetValues ((Widget) m_scrolledWindow, XmNwidth, w, NULL);
1412         }
1413
1414         if (flags & wxMOVE_HEIGHT)
1415         {
1416             if (m_borderWidget)
1417             {
1418                 XtVaSetValues ((Widget) m_borderWidget, XmNheight, h, NULL);
1419                 short thick, margin;
1420                 XtVaGetValues ((Widget) m_borderWidget,
1421                                XmNshadowThickness, &thick,
1422                                XmNmarginHeight, &margin,
1423                                NULL);
1424                 h -= 2 * (thick + margin);
1425             }
1426
1427             if( h < 1 ) h = 1;
1428             XtVaSetValues ((Widget) m_scrolledWindow, XmNheight, h, NULL);
1429         }
1430
1431         if (managed)
1432             XtManageChild (borderOrScrolled);
1433         XtVaSetValues(drawingArea, XmNresizePolicy, XmRESIZE_NONE, NULL);
1434     }
1435     else
1436     {
1437         if( w < 1 ) w = 1;
1438         if( h < 1 ) h = 1;
1439
1440         XtVaSetValues((Widget)GetTopWidget(),
1441                       XmNx, xx,
1442                       XmNy, yy,
1443                       XmNwidth, w,
1444                       XmNheight, h,
1445                       NULL);
1446     }
1447 }
1448
1449 void wxWindow::DoMoveWindow(int x, int y, int width, int height)
1450 {
1451     DoMoveWindowIntr (x, y, width, height,
1452                       wxMOVE_X|wxMOVE_Y|wxMOVE_WIDTH|wxMOVE_HEIGHT);
1453 }
1454
1455 // ---------------------------------------------------------------------------
1456 // text metrics
1457 // ---------------------------------------------------------------------------
1458
1459 int wxWindow::GetCharHeight() const
1460 {
1461     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1462
1463     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1464
1465     int direction, ascent, descent;
1466     XCharStruct overall;
1467     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1468         &descent, &overall);
1469
1470     //  return (overall.ascent + overall.descent);
1471     return (ascent + descent);
1472 }
1473
1474 int wxWindow::GetCharWidth() const
1475 {
1476     wxCHECK_MSG( m_font.Ok(), 0, "valid window font needed" );
1477
1478     WXFontStructPtr pFontStruct = m_font.GetFontStruct(1.0, GetXDisplay());
1479
1480     int direction, ascent, descent;
1481     XCharStruct overall;
1482     XTextExtents ((XFontStruct*) pFontStruct, "x", 1, &direction, &ascent,
1483         &descent, &overall);
1484
1485     return overall.width;
1486 }
1487
1488 void wxWindow::GetTextExtent(const wxString& string,
1489                              int *x, int *y,
1490                              int *descent, int *externalLeading,
1491                              const wxFont *theFont) const
1492 {
1493     wxFont *fontToUse = (wxFont *)theFont;
1494     if (!fontToUse)
1495         fontToUse = (wxFont *) & m_font;
1496
1497     wxCHECK_RET( fontToUse->Ok(), "valid window font needed" );
1498
1499     WXFontStructPtr pFontStruct = fontToUse->GetFontStruct(1.0, GetXDisplay());
1500
1501     int direction, ascent, descent2;
1502     XCharStruct overall;
1503     int slen = string.Len();
1504
1505 #if 0
1506     if (use16)
1507         XTextExtents16((XFontStruct*) pFontStruct, (XChar2b *) (char*) (const char*) string, slen, &direction,
1508         &ascent, &descent2, &overall);
1509 #endif
1510
1511     XTextExtents((XFontStruct*) pFontStruct, string, slen,
1512                  &direction, &ascent, &descent2, &overall);
1513
1514     if ( x )
1515         *x = (overall.width);
1516     if ( y )
1517         *y = (ascent + descent2);
1518     if (descent)
1519         *descent = descent2;
1520     if (externalLeading)
1521         *externalLeading = 0;
1522
1523 }
1524
1525 // ----------------------------------------------------------------------------
1526 // painting
1527 // ----------------------------------------------------------------------------
1528
1529 void wxWindow::AddUpdateRect(int x, int y, int w, int h)
1530 {
1531     m_updateRegion.Union( x, y, w, h );
1532 }
1533
1534 void wxWindow::Refresh(bool eraseBack, const wxRect *rect)
1535 {
1536     m_needsRefresh = TRUE;
1537     Display *display = XtDisplay((Widget) GetMainWidget());
1538     Window thisWindow = XtWindow((Widget) GetMainWidget());
1539
1540     XExposeEvent dummyEvent;
1541     int width, height;
1542     GetSize(&width, &height);
1543
1544     dummyEvent.type = Expose;
1545     dummyEvent.display = display;
1546     dummyEvent.send_event = True;
1547     dummyEvent.window = thisWindow;
1548     if (rect)
1549     {
1550         dummyEvent.x = rect->x;
1551         dummyEvent.y = rect->y;
1552         dummyEvent.width = rect->width;
1553         dummyEvent.height = rect->height;
1554     }
1555     else
1556     {
1557         dummyEvent.x = 0;
1558         dummyEvent.y = 0;
1559         dummyEvent.width = width;
1560         dummyEvent.height = height;
1561     }
1562     dummyEvent.count = 0;
1563
1564     if (eraseBack)
1565     {
1566         wxClientDC dc(this);
1567         wxBrush backgroundBrush(GetBackgroundColour(), wxSOLID);
1568         dc.SetBackground(backgroundBrush);
1569         if (rect)
1570             dc.Clear(*rect);
1571         else
1572             dc.Clear();
1573     }
1574
1575     XSendEvent(display, thisWindow, False, ExposureMask, (XEvent *)&dummyEvent);
1576 }
1577
1578 void wxWindow::DoPaint()
1579 {
1580     //TODO : make a temporary gc so we can do the XCopyArea below
1581     if (m_backingPixmap && !m_needsRefresh)
1582     {
1583       wxPaintDC dc(this);
1584
1585       GC tempGC = (GC) dc.GetBackingGC();
1586
1587       Widget widget = (Widget) GetMainWidget();
1588
1589       int scrollPosX = 0;
1590       int scrollPosY = 0;
1591
1592       // We have to test whether it's a wxScrolledWindow (hack!) because
1593       // otherwise we don't know how many pixels have been scrolled. We might
1594       // solve this in the future by defining virtual wxWindow functions to get
1595       // the scroll position in pixels. Or, each kind of scrolled window has to
1596       // implement backing stores itself, using generic wxWindows code.
1597       wxScrolledWindow* scrolledWindow = wxDynamicCast(this, wxScrolledWindow);
1598       if ( scrolledWindow )
1599       {
1600           int x, y;
1601           scrolledWindow->CalcScrolledPosition(0, 0, &x, &y);
1602
1603           scrollPosX = - x;
1604           scrollPosY = - y;
1605       }
1606
1607       // TODO: This could be optimized further by only copying the areas in the
1608       //       current update region.
1609
1610       // Only blit the part visible in the client area. The backing pixmap
1611       // always starts at 0, 0 but we may be looking at only a portion of it.
1612       wxSize clientArea = GetClientSize();
1613       int toBlitX = m_pixmapWidth - scrollPosX;
1614       int toBlitY = m_pixmapHeight - scrollPosY;
1615
1616       // Copy whichever is samller, the amount of pixmap we have to copy,
1617       // or the size of the client area.
1618       toBlitX = wxMin(toBlitX, clientArea.x);
1619       toBlitY = wxMin(toBlitY, clientArea.y);
1620
1621       // Make sure we're not negative
1622       toBlitX = wxMax(0, toBlitX);
1623       toBlitY = wxMax(0, toBlitY);
1624
1625       XCopyArea
1626       (
1627        XtDisplay(widget),
1628        (Pixmap) m_backingPixmap,
1629        XtWindow (widget),
1630        tempGC,
1631        scrollPosX, scrollPosY, // Start at the scroll position
1632        toBlitX, toBlitY,       // How much of the pixmap to copy
1633        0, 0                    // Destination
1634       );
1635     }
1636     else
1637     {
1638         wxWindowDC dc(this);
1639         // Set an erase event first
1640         wxEraseEvent eraseEvent(GetId(), &dc);
1641         eraseEvent.SetEventObject(this);
1642         GetEventHandler()->ProcessEvent(eraseEvent);
1643
1644         wxPaintEvent event(GetId());
1645         event.SetEventObject(this);
1646         GetEventHandler()->ProcessEvent(event);
1647
1648         m_needsRefresh = FALSE;
1649     }
1650 }
1651
1652 // ----------------------------------------------------------------------------
1653 // event handlers
1654 // ----------------------------------------------------------------------------
1655
1656 // Responds to colour changes: passes event on to children.
1657 void wxWindow::OnSysColourChanged(wxSysColourChangedEvent& event)
1658 {
1659     wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
1660     while ( node )
1661     {
1662         // Only propagate to non-top-level windows
1663         wxWindow *win = node->GetData();
1664         if ( win->GetParent() )
1665         {
1666             wxSysColourChangedEvent event2;
1667             event.m_eventObject = win;
1668             win->GetEventHandler()->ProcessEvent(event2);
1669         }
1670
1671         node = node->GetNext();
1672     }
1673 }
1674
1675 void wxWindow::OnInternalIdle()
1676 {
1677     // This calls the UI-update mechanism (querying windows for
1678     // menu/toolbar/control state information)
1679     if (wxUpdateUIEvent::CanUpdate(this))
1680         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1681 }
1682
1683 // ----------------------------------------------------------------------------
1684 // accelerators
1685 // ----------------------------------------------------------------------------
1686
1687 bool wxWindow::ProcessAccelerator(wxKeyEvent& event)
1688 {
1689 #if wxUSE_ACCEL
1690     if (!m_acceleratorTable.Ok())
1691         return FALSE;
1692
1693     int count = m_acceleratorTable.GetCount();
1694     wxAcceleratorEntry* entries = m_acceleratorTable.GetEntries();
1695     int i;
1696     for (i = 0; i < count; i++)
1697     {
1698         wxAcceleratorEntry* entry = & (entries[i]);
1699         if (entry->MatchesEvent(event))
1700         {
1701             // Bingo, we have a match. Now find a control that matches the
1702             // entry command id.
1703
1704             // Need to go up to the top of the window hierarchy, since it might
1705             // be e.g. a menu item
1706             wxWindow* parent = this;
1707             while ( parent && !parent->IsTopLevel() )
1708                 parent = parent->GetParent();
1709
1710             if (!parent)
1711                 return FALSE;
1712
1713             wxFrame* frame = wxDynamicCast(parent, wxFrame);
1714             if ( frame )
1715             {
1716 #if wxUSE_MENUS
1717                 // Try for a menu command
1718                 if (frame->GetMenuBar())
1719                 {
1720                     wxMenuItem* item = frame->GetMenuBar()->FindItem(entry->GetCommand());
1721                     if (item)
1722                     {
1723                         wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, entry->GetCommand());
1724                         commandEvent.SetEventObject(frame);
1725
1726                         // If ProcessEvent returns TRUE (it was handled), then
1727                         // the calling code will skip the event handling.
1728                         return frame->GetEventHandler()->ProcessEvent(commandEvent);
1729                     }
1730                 }
1731 #endif
1732             }
1733
1734             // Find a child matching the command id
1735             wxWindow* child = parent->FindWindow(entry->GetCommand());
1736
1737             // No such child
1738             if (!child)
1739                 return FALSE;
1740
1741             // Now we process those kinds of windows that we can.
1742             // For now, only buttons.
1743             if ( wxDynamicCast(child, wxButton) )
1744             {
1745                 wxCommandEvent commandEvent (wxEVT_COMMAND_BUTTON_CLICKED, child->GetId());
1746                 commandEvent.SetEventObject(child);
1747                 return child->GetEventHandler()->ProcessEvent(commandEvent);
1748             }
1749
1750             return FALSE;
1751         } // matches event
1752     }// for
1753 #endif
1754
1755     // We didn't match the key event against an accelerator.
1756     return FALSE;
1757 }
1758
1759 // ============================================================================
1760 // Motif-specific stuff from here on
1761 // ============================================================================
1762
1763 // ----------------------------------------------------------------------------
1764 // function which maintain the global hash table mapping Widgets to wxWindows
1765 // ----------------------------------------------------------------------------
1766
1767 bool wxAddWindowToTable(Widget w, wxWindow *win)
1768 {
1769     wxWindow *oldItem = NULL;
1770     if ((oldItem = (wxWindow *)wxWidgetHashTable->Get ((long) w)))
1771     {
1772         wxLogDebug("Widget table clash: new widget is %ld, %s",
1773                    (long)w, win->GetClassInfo()->GetClassName());
1774         return FALSE;
1775     }
1776
1777     wxWidgetHashTable->Put((long) w, win);
1778
1779     wxLogTrace("widget", "Widget 0x%p <-> window %p (%s)",
1780                (WXWidget)w, win, win->GetClassInfo()->GetClassName());
1781
1782     return TRUE;
1783 }
1784
1785 wxWindow *wxGetWindowFromTable(Widget w)
1786 {
1787     return (wxWindow *)wxWidgetHashTable->Get((long) w);
1788 }
1789
1790 void wxDeleteWindowFromTable(Widget w)
1791 {
1792     wxLogTrace("widget", "Widget 0x%p", (WXWidget)w);
1793
1794     wxWidgetHashTable->Delete((long)w);
1795 }
1796
1797 // ----------------------------------------------------------------------------
1798 // add/remove window from the table
1799 // ----------------------------------------------------------------------------
1800
1801 // Add to hash table, add event handler
1802 bool wxWindow::AttachWidget (wxWindow* WXUNUSED(parent), WXWidget mainWidget,
1803                              WXWidget formWidget, int x, int y, int width, int height)
1804 {
1805     wxAddWindowToTable((Widget) mainWidget, this);
1806     XtAddEventHandler( (Widget) mainWidget,
1807                        ButtonPressMask | ButtonReleaseMask
1808                      | PointerMotionMask,
1809                        False,
1810                        wxPanelItemEventHandler,
1811                        (XtPointer) this);
1812
1813     if (!formWidget)
1814     {
1815         XtTranslations ptr;
1816         XtOverrideTranslations ((Widget) mainWidget,
1817             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1818         XtFree ((char *) ptr);
1819     }
1820
1821     // Some widgets have a parent form widget, e.g. wxRadioBox
1822     if (formWidget)
1823     {
1824         if (!wxAddWindowToTable((Widget) formWidget, this))
1825             return FALSE;
1826
1827         XtTranslations ptr;
1828         XtOverrideTranslations ((Widget) formWidget,
1829             ptr = XtParseTranslationTable ("<Configure>: resize()"));
1830         XtFree ((char *) ptr);
1831     }
1832
1833     if (x == -1)
1834         x = 0;
1835     if (y == -1)
1836         y = 0;
1837     SetSize (x, y, width, height);
1838
1839     return TRUE;
1840 }
1841
1842 // Remove event handler, remove from hash table
1843 bool wxWindow::DetachWidget(WXWidget widget)
1844 {
1845     XtRemoveEventHandler( (Widget) widget,
1846                           ButtonPressMask | ButtonReleaseMask
1847                         | PointerMotionMask,
1848                           False,
1849                           wxPanelItemEventHandler,
1850                           (XtPointer)this);
1851
1852     wxDeleteWindowFromTable((Widget) widget);
1853     return TRUE;
1854 }
1855
1856 // ----------------------------------------------------------------------------
1857 // Motif-specific accessors
1858 // ----------------------------------------------------------------------------
1859
1860 WXWindow wxWindow::GetClientXWindow() const
1861 {
1862     Widget wMain = (Widget)GetClientWidget();
1863     if ( wMain )
1864         return (WXWindow) XtWindow(wMain);
1865     else
1866         return (WXWindow) 0;
1867 }
1868
1869 // Get the underlying X window
1870 WXWindow wxWindow::GetXWindow() const
1871 {
1872     Widget wMain = (Widget)GetMainWidget();
1873     if ( wMain )
1874         return (WXWindow) XtWindow(wMain);
1875     else
1876         return (WXWindow) 0;
1877 }
1878
1879 // Get the underlying X display
1880 WXDisplay *wxWindow::GetXDisplay() const
1881 {
1882     Widget wMain = (Widget)GetMainWidget();
1883     if ( wMain )
1884         return (WXDisplay*) XtDisplay(wMain);
1885     else
1886         return (WXDisplay*) NULL;
1887 }
1888
1889 WXWidget wxWindow::GetMainWidget() const
1890 {
1891     if (m_drawingArea)
1892         return m_drawingArea;
1893     else
1894         return m_mainWidget;
1895 }
1896
1897 WXWidget wxWindow::GetClientWidget() const
1898 {
1899     if (m_drawingArea != (WXWidget) 0)
1900         return m_drawingArea;
1901     else
1902         return GetMainWidget();
1903 }
1904
1905 WXWidget wxWindow::GetTopWidget() const
1906 {
1907     return GetMainWidget();
1908 }
1909
1910 WXWidget wxWindow::GetLabelWidget() const
1911 {
1912     return GetMainWidget();
1913 }
1914
1915 // ----------------------------------------------------------------------------
1916 // Motif callbacks
1917 // ----------------------------------------------------------------------------
1918
1919 // All widgets should have this as their resize proc.
1920 // OnSize sent to wxWindow via client data.
1921 void wxWidgetResizeProc(Widget w, XConfigureEvent *WXUNUSED(event),
1922                         String WXUNUSED(args)[], int *WXUNUSED(num_args))
1923 {
1924     wxWindow *win = wxGetWindowFromTable(w);
1925     if (!win)
1926         return;
1927
1928     if (win->PreResize())
1929     {
1930         int width, height;
1931         win->GetSize(&width, &height);
1932         wxSizeEvent sizeEvent(wxSize(width, height), win->GetId());
1933         sizeEvent.SetEventObject(win);
1934         win->GetEventHandler()->ProcessEvent(sizeEvent);
1935     }
1936 }
1937
1938 static void wxCanvasRepaintProc(Widget drawingArea,
1939                                 XtPointer clientData,
1940                                 XmDrawingAreaCallbackStruct * cbs)
1941 {
1942     if (!wxGetWindowFromTable(drawingArea))
1943         return;
1944
1945     XEvent * event = cbs->event;
1946     wxWindow * win = (wxWindow *) clientData;
1947
1948     switch (event->type)
1949     {
1950     case Expose:
1951         {
1952             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
1953                                event->xexpose.width, event->xexpose.height);
1954
1955             if (event -> xexpose.count == 0)
1956             {
1957                 win->DoPaint();
1958             }
1959             break;
1960         }
1961     }
1962 }
1963
1964 // Unable to deal with Enter/Leave without a separate EventHandler (Motif 1.1.4)
1965 static void wxCanvasEnterLeave(Widget drawingArea,
1966                                XtPointer WXUNUSED(clientData),
1967                                XCrossingEvent * event)
1968 {
1969     XmDrawingAreaCallbackStruct cbs;
1970     XEvent ev;
1971
1972     ((XCrossingEvent &) ev) = *event;
1973
1974     cbs.reason = XmCR_INPUT;
1975     cbs.event = &ev;
1976
1977     wxCanvasInputEvent(drawingArea, (XtPointer) NULL, &cbs);
1978 }
1979
1980 // Fix to make it work under Motif 1.0 (!)
1981 static void wxCanvasMotionEvent (Widget WXUNUSED(drawingArea),
1982                                  XButtonEvent *WXUNUSED(event))
1983 {
1984 #if XmVersion <= 1000
1985     XmDrawingAreaCallbackStruct cbs;
1986     XEvent ev;
1987
1988     ev = *((XEvent *) event);
1989     cbs.reason = XmCR_INPUT;
1990     cbs.event = &ev;
1991
1992     wxCanvasInputEvent (drawingArea, (XtPointer) NULL, &cbs);
1993 #endif // XmVersion <= 1000
1994 }
1995
1996 static void wxCanvasInputEvent(Widget drawingArea,
1997                                XtPointer WXUNUSED(data),
1998                                XmDrawingAreaCallbackStruct * cbs)
1999 {
2000     wxWindow *canvas = wxGetWindowFromTable(drawingArea);
2001     XEvent* xevent = cbs->event;
2002
2003     if (canvas==NULL)
2004         return;
2005
2006     if (cbs->reason != XmCR_INPUT)
2007         return;
2008
2009     switch (xevent->xany.type)
2010     {
2011     case EnterNotify:
2012     case LeaveNotify:
2013     case ButtonPress:
2014     case ButtonRelease:
2015     case MotionNotify:
2016         {
2017             wxMouseEvent wxevent(0);
2018             if (wxTranslateMouseEvent(wxevent, canvas, drawingArea, xevent))
2019             {
2020                 canvas->GetEventHandler()->ProcessEvent(wxevent);
2021             }
2022             break;
2023         }
2024     case KeyPress:
2025         {
2026             wxKeyEvent event (wxEVT_CHAR);
2027             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2028             {
2029                 // Implement wxFrame::OnCharHook by checking ancestor.
2030                 wxWindow *parent = canvas;
2031                 while (parent && !parent->IsTopLevel())
2032                     parent = parent->GetParent();
2033
2034                 if (parent)
2035                 {
2036                     event.SetEventType(wxEVT_CHAR_HOOK);
2037                     if (parent->GetEventHandler()->ProcessEvent(event))
2038                         return;
2039                 }
2040
2041                 // For simplicity, OnKeyDown is the same as OnChar
2042                 // TODO: filter modifier key presses from OnChar
2043                 event.SetEventType(wxEVT_KEY_DOWN);
2044
2045                 // Only process OnChar if OnKeyDown didn't swallow it
2046                 if (!canvas->GetEventHandler()->ProcessEvent (event))
2047                 {
2048                     event.SetEventType(wxEVT_CHAR);
2049                     canvas->GetEventHandler()->ProcessEvent (event);
2050                 }
2051             }
2052             break;
2053         }
2054     case KeyRelease:
2055         {
2056             wxKeyEvent event (wxEVT_KEY_UP);
2057             if (wxTranslateKeyEvent (event, canvas, (Widget) 0, xevent))
2058             {
2059                 canvas->GetEventHandler()->ProcessEvent (event);
2060             }
2061             break;
2062         }
2063     case FocusIn:
2064         {
2065             if (xevent->xfocus.detail != NotifyPointer)
2066             {
2067                 wxFocusEvent event(wxEVT_SET_FOCUS, canvas->GetId());
2068                 event.SetEventObject(canvas);
2069                 canvas->GetEventHandler()->ProcessEvent(event);
2070             }
2071             break;
2072         }
2073     case FocusOut:
2074         {
2075             if (xevent->xfocus.detail != NotifyPointer)
2076             {
2077                 wxFocusEvent event(wxEVT_KILL_FOCUS, canvas->GetId());
2078                 event.SetEventObject(canvas);
2079                 canvas->GetEventHandler()->ProcessEvent(event);
2080             }
2081             break;
2082         }
2083     default:
2084         break;
2085     }
2086 }
2087
2088 static void wxPanelItemEventHandler(Widget    wid,
2089                                     XtPointer WXUNUSED(client_data),
2090                                     XEvent*   event,
2091                                     Boolean  *continueToDispatch)
2092 {
2093     // Widget can be a label or the actual widget.
2094
2095     wxWindow *window = wxGetWindowFromTable(wid);
2096     if (window)
2097     {
2098         wxMouseEvent wxevent(0);
2099         if (wxTranslateMouseEvent(wxevent, window, wid, event))
2100         {
2101             window->GetEventHandler()->ProcessEvent(wxevent);
2102         }
2103     }
2104
2105     // TODO: probably the key to allowing default behaviour to happen. Say we
2106     // set a m_doDefault flag to FALSE at the start of this function. Then in
2107     // e.g. wxWindow::OnMouseEvent we can call Default() which sets this flag to
2108     // TRUE, indicating that default processing can happen. Thus, behaviour can
2109     // appear to be overridden just by adding an event handler and not calling
2110     // wxWindow::OnWhatever. ALSO, maybe we can use this instead of the current
2111     // way of handling drawing area events, to simplify things.
2112     *continueToDispatch = True;
2113 }
2114
2115 static void wxScrollBarCallback(Widget scrollbar,
2116                                 XtPointer clientData,
2117                                 XmScrollBarCallbackStruct *cbs)
2118 {
2119     wxWindow *win = wxGetWindowFromTable(scrollbar);
2120     wxOrientation orientation = (wxOrientation)(int)clientData;
2121
2122     wxEventType eventType = wxEVT_NULL;
2123     switch (cbs->reason)
2124     {
2125     case XmCR_INCREMENT:
2126         {
2127             eventType = wxEVT_SCROLLWIN_LINEDOWN;
2128             break;
2129         }
2130     case XmCR_DECREMENT:
2131         {
2132             eventType = wxEVT_SCROLLWIN_LINEUP;
2133             break;
2134         }
2135     case XmCR_DRAG:
2136         {
2137             eventType = wxEVT_SCROLLWIN_THUMBTRACK;
2138             break;
2139         }
2140     case XmCR_VALUE_CHANGED:
2141         {
2142             eventType = wxEVT_SCROLLWIN_THUMBRELEASE;
2143             break;
2144         }
2145     case XmCR_PAGE_INCREMENT:
2146         {
2147             eventType = wxEVT_SCROLLWIN_PAGEDOWN;
2148             break;
2149         }
2150     case XmCR_PAGE_DECREMENT:
2151         {
2152             eventType = wxEVT_SCROLLWIN_PAGEUP;
2153             break;
2154         }
2155     case XmCR_TO_TOP:
2156         {
2157             eventType = wxEVT_SCROLLWIN_TOP;
2158             break;
2159         }
2160     case XmCR_TO_BOTTOM:
2161         {
2162             eventType = wxEVT_SCROLLWIN_BOTTOM;
2163             break;
2164         }
2165     default:
2166         {
2167             // Should never get here
2168             wxFAIL_MSG("Unknown scroll event.");
2169             break;
2170         }
2171     }
2172
2173     wxScrollWinEvent event(eventType,
2174                            cbs->value,
2175                            orientation);
2176     event.SetEventObject( win );
2177     win->GetEventHandler()->ProcessEvent(event);
2178 }
2179
2180 // For repainting arbitrary windows
2181 void wxUniversalRepaintProc(Widget w, XtPointer WXUNUSED(c_data), XEvent *event, char *)
2182 {
2183     Window window;
2184     Display *display;
2185
2186     wxWindow* win = wxGetWindowFromTable(w);
2187     if (!win)
2188         return;
2189
2190     switch(event -> type)
2191     {
2192     case Expose:
2193         {
2194             window = (Window) win -> GetXWindow();
2195             display = (Display *) win -> GetXDisplay();
2196
2197             win->AddUpdateRect(event->xexpose.x, event->xexpose.y,
2198                                event->xexpose.width, event->xexpose.height);
2199
2200             if (event -> xexpose.count == 0)
2201             {
2202                 win->DoPaint();
2203             }
2204
2205             break;
2206         }
2207     }
2208 }
2209
2210 // ----------------------------------------------------------------------------
2211 // TranslateXXXEvent() functions
2212 // ----------------------------------------------------------------------------
2213
2214 bool wxTranslateMouseEvent(wxMouseEvent& wxevent, wxWindow *win,
2215                            Widget widget, const XEvent *xevent)
2216 {
2217     switch (xevent->xany.type)
2218     {
2219         case EnterNotify:
2220         case LeaveNotify:
2221 #if 0
2222             fprintf(stderr, "Widget 0x%p <-> window %p (%s), %s\n",
2223                     (WXWidget)widget, win, win->GetClassInfo()->GetClassName(),
2224                     (xevent->xany.type == EnterNotify ? "ENTER" : "LEAVE"));
2225 #endif
2226         case ButtonPress:
2227         case ButtonRelease:
2228         case MotionNotify:
2229         {
2230             int eventx = xevent->xbutton.x, eventy = xevent->xbutton.y;
2231
2232             wxEventType eventType = wxEVT_NULL;
2233
2234             if (xevent->xany.type == LeaveNotify)
2235             {
2236                 eventType = wxEVT_LEAVE_WINDOW;
2237             }
2238             if (xevent->xany.type == EnterNotify)
2239             {
2240                 eventType = wxEVT_ENTER_WINDOW;
2241             }
2242             else if (xevent->xany.type == MotionNotify)
2243             {
2244                 eventType = wxEVT_MOTION;
2245
2246                 if (xevent->xmotion.is_hint == NotifyHint)
2247                 {
2248                     Window root, child;
2249                     int x_root, y_root;
2250                     unsigned int state;
2251                     Display *dpy = XtDisplay (widget);
2252
2253                     XQueryPointer (dpy, XtWindow (widget),
2254                         &root, &child,
2255                         &x_root, &y_root, &eventx, &eventy, &state);
2256                 }
2257             }
2258             else if (xevent->xany.type == ButtonPress)
2259             {
2260                 wxevent.SetTimestamp(xevent->xbutton.time);
2261                 int button = 0;
2262                 if (xevent->xbutton.button == Button1)
2263                 {
2264                     eventType = wxEVT_LEFT_DOWN;
2265                     button = 1;
2266                 }
2267                 else if (xevent->xbutton.button == Button2)
2268                 {
2269                     eventType = wxEVT_MIDDLE_DOWN;
2270                     button = 2;
2271                 }
2272                 else if (xevent->xbutton.button == Button3)
2273                 {
2274                     eventType = wxEVT_RIGHT_DOWN;
2275                     button = 3;
2276                 }
2277
2278                 // check for a double click
2279                 //
2280                 long dclickTime = XtGetMultiClickTime(xevent->xany.display);
2281                 long ts = wxevent.GetTimestamp();
2282
2283                 int buttonLast = win->GetLastClickedButton();
2284                 long lastTS = win->GetLastClickTime();
2285                 if ( buttonLast && buttonLast == button &&
2286                      (ts - lastTS) < dclickTime )
2287                 {
2288                     // I have a dclick
2289                     win->SetLastClick(0, ts);
2290                     if ( eventType == wxEVT_LEFT_DOWN )
2291                         eventType = wxEVT_LEFT_DCLICK;
2292                     else if ( eventType == wxEVT_MIDDLE_DOWN )
2293                         eventType = wxEVT_MIDDLE_DCLICK;
2294                     else if ( eventType == wxEVT_RIGHT_DOWN )
2295                         eventType = wxEVT_RIGHT_DCLICK;
2296                 }
2297                 else
2298                 {
2299                     // not fast enough or different button
2300                     win->SetLastClick(button, ts);
2301                 }
2302             }
2303             else if (xevent->xany.type == ButtonRelease)
2304             {
2305                 if (xevent->xbutton.button == Button1)
2306                 {
2307                     eventType = wxEVT_LEFT_UP;
2308                 }
2309                 else if (xevent->xbutton.button == Button2)
2310                 {
2311                     eventType = wxEVT_MIDDLE_UP;
2312                 }
2313                 else if (xevent->xbutton.button == Button3)
2314                 {
2315                     eventType = wxEVT_RIGHT_UP;
2316                 }
2317                 else
2318                     return FALSE;
2319             }
2320             else
2321             {
2322                 return FALSE;
2323             }
2324
2325             wxevent.SetEventType(eventType);
2326
2327             Position x1, y1;
2328             XtVaGetValues(widget, XmNx, &x1, XmNy, &y1, NULL);
2329
2330             int x2, y2;
2331             win->GetPosition(&x2, &y2);
2332
2333             // The button x/y must be translated to wxWindows
2334             // window space - the widget might be a label or button,
2335             // within a form.
2336             int dx = 0;
2337             int dy = 0;
2338             if (widget != (Widget)win->GetMainWidget())
2339             {
2340                 dx = x1;
2341                 dy = y1;
2342             }
2343
2344             wxevent.m_x = eventx + dx;
2345             wxevent.m_y = eventy + dy;
2346
2347             wxevent.m_leftDown = ((eventType == wxEVT_LEFT_DOWN)
2348                 || (event_left_is_down (xevent)
2349                 && (eventType != wxEVT_LEFT_UP)));
2350             wxevent.m_middleDown = ((eventType == wxEVT_MIDDLE_DOWN)
2351                 || (event_middle_is_down (xevent)
2352                 && (eventType != wxEVT_MIDDLE_UP)));
2353             wxevent.m_rightDown = ((eventType == wxEVT_RIGHT_DOWN)
2354                 || (event_right_is_down (xevent)
2355                 && (eventType != wxEVT_RIGHT_UP)));
2356
2357             wxevent.m_shiftDown = xevent->xbutton.state & ShiftMask;
2358             wxevent.m_controlDown = xevent->xbutton.state & ControlMask;
2359             wxevent.m_altDown = xevent->xbutton.state & Mod3Mask;
2360             wxevent.m_metaDown = xevent->xbutton.state & Mod1Mask;
2361
2362             wxevent.SetId(win->GetId());
2363             wxevent.SetEventObject(win);
2364
2365             return TRUE;
2366         }
2367     }
2368     return FALSE;
2369 }
2370
2371 bool wxTranslateKeyEvent(wxKeyEvent& wxevent, wxWindow *win,
2372                          Widget WXUNUSED(widget), const XEvent *xevent)
2373 {
2374     switch (xevent->xany.type)
2375     {
2376     case KeyPress:
2377     case KeyRelease:
2378         {
2379             char buf[20];
2380
2381             KeySym keySym;
2382             (void) XLookupString((XKeyEvent *)xevent, buf, 20, &keySym, NULL);
2383             int id = wxCharCodeXToWX (keySym);
2384             // id may be WXK_xxx code - these are outside ASCII range, so we
2385             // can't just use toupper() on id
2386             if (id >= 'a' && id <= 'z')
2387                 id = toupper(id);
2388
2389             if (xevent->xkey.state & ShiftMask)
2390                 wxevent.m_shiftDown = TRUE;
2391             if (xevent->xkey.state & ControlMask)
2392                 wxevent.m_controlDown = TRUE;
2393             if (xevent->xkey.state & Mod3Mask)
2394                 wxevent.m_altDown = TRUE;
2395             if (xevent->xkey.state & Mod1Mask)
2396                 wxevent.m_metaDown = TRUE;
2397             wxevent.SetEventObject(win);
2398             wxevent.m_keyCode = id;
2399             wxevent.SetTimestamp(xevent->xkey.time);
2400
2401             wxevent.m_x = xevent->xbutton.x;
2402             wxevent.m_y = xevent->xbutton.y;
2403
2404             if (id > -1)
2405                 return TRUE;
2406             else
2407                 return FALSE;
2408             break;
2409         }
2410     default:
2411         break;
2412     }
2413     return FALSE;
2414 }
2415
2416 // ----------------------------------------------------------------------------
2417 // Colour stuff
2418 // ----------------------------------------------------------------------------
2419
2420 #define YAllocColor XAllocColor
2421 XColor g_itemColors[5];
2422 int wxComputeColours (Display *display, wxColour * back, wxColour * fore)
2423 {
2424     int result;
2425     static XmColorProc colorProc;
2426
2427     result = wxNO_COLORS;
2428
2429     if (back)
2430     {
2431         g_itemColors[0].red = (((long) back->Red ()) << 8);
2432         g_itemColors[0].green = (((long) back->Green ()) << 8);
2433         g_itemColors[0].blue = (((long) back->Blue ()) << 8);
2434         g_itemColors[0].flags = DoRed | DoGreen | DoBlue;
2435         if (colorProc == (XmColorProc) NULL)
2436         {
2437             // Get a ptr to the actual function
2438             colorProc = XmSetColorCalculation ((XmColorProc) NULL);
2439             // And set it back to motif.
2440             XmSetColorCalculation (colorProc);
2441         }
2442         (*colorProc) (&g_itemColors[wxBACK_INDEX],
2443             &g_itemColors[wxFORE_INDEX],
2444             &g_itemColors[wxSELE_INDEX],
2445             &g_itemColors[wxTOPS_INDEX],
2446             &g_itemColors[wxBOTS_INDEX]);
2447         result = wxBACK_COLORS;
2448     }
2449     if (fore)
2450     {
2451         g_itemColors[wxFORE_INDEX].red = (((long) fore->Red ()) << 8);
2452         g_itemColors[wxFORE_INDEX].green = (((long) fore->Green ()) << 8);
2453         g_itemColors[wxFORE_INDEX].blue = (((long) fore->Blue ()) << 8);
2454         g_itemColors[wxFORE_INDEX].flags = DoRed | DoGreen | DoBlue;
2455         if (result == wxNO_COLORS)
2456             result = wxFORE_COLORS;
2457     }
2458
2459     Display *dpy = display;
2460     Colormap cmap = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dpy);
2461
2462     if (back)
2463     {
2464         /* 5 Colours to allocate */
2465         for (int i = 0; i < 5; i++)
2466             if (!YAllocColor (dpy, cmap, &g_itemColors[i]))
2467                 result = wxNO_COLORS;
2468     }
2469     else if (fore)
2470     {
2471         /* Only 1 colour to allocate */
2472         if (!YAllocColor (dpy, cmap, &g_itemColors[wxFORE_INDEX]))
2473             result = wxNO_COLORS;
2474     }
2475
2476     return result;
2477 }
2478
2479 // Changes the foreground and background colours to be derived from the current
2480 // background colour. To change the foreground colour, you must call
2481 // SetForegroundColour explicitly.
2482 void wxWindow::ChangeBackgroundColour()
2483 {
2484     WXWidget mainWidget = GetMainWidget();
2485     if ( mainWidget )
2486         wxDoChangeBackgroundColour(mainWidget, m_backgroundColour);
2487 }
2488
2489 void wxWindow::ChangeForegroundColour()
2490 {
2491     WXWidget mainWidget = GetMainWidget();
2492     if ( mainWidget )
2493         wxDoChangeForegroundColour(mainWidget, m_foregroundColour);
2494     if ( m_scrolledWindow && mainWidget != m_scrolledWindow )
2495         wxDoChangeForegroundColour(m_scrolledWindow, m_foregroundColour);
2496 }
2497
2498 bool wxWindow::SetBackgroundColour(const wxColour& col)
2499 {
2500     if ( !wxWindowBase::SetBackgroundColour(col) )
2501         return FALSE;
2502
2503     ChangeBackgroundColour();
2504
2505     return TRUE;
2506 }
2507
2508 bool wxWindow::SetForegroundColour(const wxColour& col)
2509 {
2510     if ( !wxWindowBase::SetForegroundColour(col) )
2511         return FALSE;
2512
2513     ChangeForegroundColour();
2514
2515     return TRUE;
2516 }
2517
2518 void wxWindow::ChangeFont(bool keepOriginalSize)
2519 {
2520     // Note that this causes the widget to be resized back
2521     // to its original size! We therefore have to set the size
2522     // back again. TODO: a better way in Motif?
2523     Widget w = (Widget) GetLabelWidget(); // Usually the main widget
2524     if (w && m_font.Ok())
2525     {
2526         int width, height, width1, height1;
2527         GetSize(& width, & height);
2528
2529         wxDoChangeFont( GetLabelWidget(), m_font );
2530
2531         GetSize(& width1, & height1);
2532         if (keepOriginalSize && (width != width1 || height != height1))
2533         {
2534             SetSize(-1, -1, width, height);
2535         }
2536     }
2537 }
2538
2539 // ----------------------------------------------------------------------------
2540 // global functions
2541 // ----------------------------------------------------------------------------
2542
2543 wxWindow *wxGetActiveWindow()
2544 {
2545     // TODO
2546     wxFAIL_MSG("Not implemented");
2547     return NULL;
2548 }
2549
2550 /* static */
2551 wxWindow *wxWindowBase::GetCapture()
2552 {
2553     return (wxWindow *)g_captureWindow;
2554 }
2555
2556
2557 // Find the wxWindow at the current mouse position, returning the mouse
2558 // position.
2559 wxWindow* wxFindWindowAtPointer(wxPoint& pt)
2560 {
2561     return wxFindWindowAtPoint(wxGetMousePosition());
2562 }
2563
2564 // Get the current mouse position.
2565 wxPoint wxGetMousePosition()
2566 {
2567     Display *display = wxGlobalDisplay();
2568     Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
2569     Window rootReturn, childReturn;
2570     int rootX, rootY, winX, winY;
2571     unsigned int maskReturn;
2572
2573     XQueryPointer (display,
2574                    rootWindow,
2575                    &rootReturn,
2576                    &childReturn,
2577                    &rootX, &rootY, &winX, &winY, &maskReturn);
2578     return wxPoint(rootX, rootY);
2579 }
2580
2581
2582 // ----------------------------------------------------------------------------
2583 // wxNoOptimize: switch off size optimization
2584 // ----------------------------------------------------------------------------
2585
2586 int wxNoOptimize::ms_count = 0;
2587